DevOps meets Security.
London DevOps meets DevSecOps - London Gathering. 

https://www.meetup.com/London-DevOps/

Speakers Bio:
Matt Saunders is a technical operations leader, using Devops and continuous delivery to help teams deliver quality software quickly and efficiently. He is also co-organiser of the London DevOps meetup - a group with over 8,000 members which meets monthly.
https://www.linkedin.com/in/msaunders/

Marc Cluet is a Senior Partner Solutions Engineer at Hashicorp and has over 25 years of experience in the Industry. Heis one of the organisers of London DevOps which is the second biggest DevOps meetup in the world, he also helps organise DevOps Exchange Barcelona and Barcelona Big Data and is a DevOps Institute Ambassador.
https://www.linkedin.com/in/marccluet/